Answer:
i done helping u
Step-by-step explanation:
X^2 -4
Not entirely sure but would u just expand the brackets. As this is a difference between 2 squares the answer should be correct but it not sure.
15.7
Lets take a = 50.
Area of Sector =
3x + 19 = 10x - 23
7x = 42
X = 6
180 - (2×37) = 106
x= 11/3
